Nail set



CHARLES J. CARTER, OFiKANSAS CITY, MISSOURI.

NAIL SET.

Specification of Letters Patent. Patented 11, 1922..

Application filed .Tune 4, 1921.V Serial lNo. 474,890.

To di -w/iom it may concern Be it known that I, CHARLns J. CARTER, citizen the United Statearesiding at Kansas l' y State of Missouri, ave invented certain new and use'ul improvements in Nail Setsyandv l do declare the following to be a full, clear,4

and exact description of the invention, such as will enable others skilled in the art to which is appertains to make and use the same, reference being had to 'the accompanying drawings, and to the figures oi reterence marked thereon, which form a part oi this specification. y A

This invention relates to nail sets for flooring and one of the objects is toprovid'e means whereby nails may beconveniently setV in the flooring and the like so that the heads will be counter-sunk, the nail set being provvide'd with a gauge or nail Efinder to expedite the operation of laying thefloor.

Anovelconstruction of' the nail setwill be apparent by reference to the following description in connection with the, accompanyingpdrawings. in whiclf-l f Fig; l is a perspective view of a 'nail set constructed in accordance withiny invention. "Y"

Fig. 2 is a perspective A View of the opposite side of the nail seti.

Fig. 3 is a sectional view through a flooring and through a nail set in functional position, and

Fig. 4 is a perspective view of a ooring and a. nail set in functional position.

The floor is shown as consisting of base strips 1, having upstanding, dove-tailed ribs or keys 2, engaging complementary grooves 3 in the blocks 4. The blocks 4 and the base strips may be assembled in the factory as units and they will be of appropriate lengths so that they can be connected together to form a floor. The opposite edges of the blocks are provided with grooves 5 to receive key strips 6 so that tongue and groove connections are provided for the blocks on adjacent units. T he blocks, or at least some o't` them in each unit, are provided with recesses 7 having approximately the same cross sectional area as the heads 8 of the nails 8 and the ends of the recesses 7 may be drilled or bored for a short distance to receive the nails 8 which may be driven into the blocks until they almost periorate them. In other words, the nails will be initially introduced in the county of Jackson and into the blocksuntil they assume the position indicated by the nail A in Fig. 3.

rfhis is preferably done at the factory so that when the units are shipped, the nails will fbe in place. It will only be necessary then to align the units with adjacent units and connect them by the key strips 6 so'that it will only be necessary for the operator to set the nails or drive them home. The nails are ot su'llicient lengths so that when they are set, they will be caused to penetrate the key strips 6 and be driven into blocks on an adjacent unit, as clearly seen in Fig. 3.

`The nail set Vfor accomplishing the setting oil the nails is shown asconsisting of a bar 9r provided at one end with a handle 10 and at the other end with a bolt-supporting head 11 transversely of the bar 9. The inner face of the head 11 is provided with a nail feeler or locator bar 12, havin'ga concave portion 13 at one end to contact with the head of the nail. The concave portion 13 of the feeler rib or bar 12 integral with the head 11 is adjacent to an opening 14, through which projects a 4nail setting bolt 15, having a head 16 on itsouter end against which one end of an expansion spring 17 bears, the other end of the springbearing against the head 11", as at 18. The spring 17 will have -a normal tendency -to press the bolt outwardly, the outward movement being limited by the shoulder 19 on the bolt 15.` as will be clearly seen in Fig. 3.

There is a guide sleeve 20 for the bolt, the sleeve being preferably integral with the head 11 and provided with a slot 21, in which may move a bolt holding brake or lever 22, pivoted intermediate its ends at 23 and having a projection 24 at its upper end, normally pressed outwardly by the spring 25, bearing against the projection and against the lug 26 on the bar 9. The lower end 27 of thebrake or bolt-holding member 22 is adapted to contact with the bolt or set as it is driven .inwardly to set the nail by the blows of a hammer so that when the initial blow is exerted againstthe head 16 and the nail is given its tirst impulse to penetrate the key strip, the brake 22 will hold it against being retracted so that it will be in a position under the impulse of additional blows to drive the nail into its linal position.

When the operation has been accomplished, pressure may be applied -to the projection 24, either manually or by tapping grooves 5 of the blocks.

it with a hammer, S that the brake @mi win be released from contact with the bolt and' the spring 17 may force the bolt to its normal position.

lt will be observed that the positioning or eeler bar or rib l2 is so disposed on the faceof the head ll that it may engage in the The floor of the groove in which the rib l2 islocated will act as a support for the set so that it caribe slid along thegroove with a minimum of elfort. Since theheads of the nails initially project into the groove 5, the operator may stand on the Hoor and l y grasping the han- -dle 10, move the head along the groove until v the portion lcontacts With the head. This i' will bring the head in longitudinal align- Will be guided in a straight line and liability lof its being deflected when it is being set` will be eliminated.

It Will be apparent that the operation oi' laying the floor may be expeditiously carried on Without the aid oit especially skilled operators and that proper nailing oi one unit to a complementary unit may be conveniently conducted. Y l

What I claim and ters-Patent is n Y l. A nail'set comprising a bar having a desire to secure by Let-- Hoor grooveengaging, nail-locating rib and a nail setting bolt carried by the bar and movable across the plane of the rib and having its end adjacent Yto one end of the rib.

2.- A nail set comprising a bar having, a ioor groove-engaging, nail-contacting rib, a bolt for setting the nail, and a friction device forholding the bolt into contact with the nail during the driving operation. Y

A nail set comprising a T-shaped having a handle at-one end, the head oi" the T being provided with a groovefengaging, nail-locating rib running lengthwise 'of the head and terminatingat `about the Vcenter thereof, aboli-guiding means on the head, and a spring-pressed, retracted bolt in the guiding means Vand movable through the head at right angles to the rib.

,/l. A nail set comprisinga plate adapted to slide over the Work and having an abutment to engage a projection, such as a partly driven nail, and a transversely slidable boltaligned With said abutment and capable or playing past the same to drive such nail7 the shapeV and proportions of the abutment being such as to align the bolt with the nail.

Y 5; A nail set comprising a plate adapted to be slid over the Workand having an abutment to engage a projection, such as a partly driven nail, a spring-retracted, transversely slidable bolt aligned With said abutment and capable of playing past the same to drive such inail, the shape andv projections of the abutment being such as to align the, bolt With the nail, and means for frictionally engaging the bolt to temporarily hold itV against retraction by the spring after it hasl moved intoy nail-driving position.

' t In testimony Whereofl ailix my signature.

CHARLES CARTER 

